This item has some material which has been commercially released.
Update 7/2006, info provided at http://db.etree.org/shn/5406 points to commercial sources, unfortunately, quoted below:
The Fillmore Acid Test (1/8/66) tracks are taken from the offically released video by Key-Z productions.
The Sound City Acid Test (1/29/66) tracks are taken from the commercial CD called The Acid Tests Vol. 1 (King Mob KMOB 3, distributed by Sony).
The Pico Acid Test (3/12/66) tracks are old excerpts; the full set exists in much better quality.
The San Francisco State Acid Test (10/2/66) tracks are taken directly from the officially released CD from Key-Z Productions.